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Title: Iosipescu shear characterization of polymeric and metal matrix composites

Abstract

The paper outlines the results of an experimental/analytical investigation of deformation and stress fields in the test section of graphite/epoxy and boron/aluminum Iosipescu specimens using high-resolution moire interferometry and finite-element analysis. Very good correlation between experiment and analysis is demonstrated for the graphite/epoxy specimens. This, in turn, justifies the use of correction factors employed in the previous investigations to eliminate differences in the initial shear moduli obtained from 0-deg and 90-deg Iosipescu specimens. The significant discrepancies observed in the case of boron/aluminum specimens are attributed to localized yielding at the notch tips caused by the clamping action, the associated in-plane bending effects and changing boundary conditions due to slippage in the grips. 9 refs.

Authors:
; ;  [1]
  1. Virginia Univ., Charlottesville (USA) Virginia Polytechnic Institute and State Univ., Blacksburg (USA)
Publication Date:
OSTI Identifier:
6880406
Resource Type:
Journal Article
Journal Name:
Experimental Mechanics; (USA)
Additional Journal Information:
Journal Volume: 30; Journal ID: ISSN 0014-4851
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINIUM ALLOYS; SHEAR PROPERTIES; BORON; EPOXIDES; GRAPHITE; BENDING; COMPARATIVE EVALUATIONS; COMPOSITE MATERIALS; DIFFRACTION; FINITE ELEMENT METHOD; GEOMETRY; INTERFEROMETRY; MATRIX MATERIALS; POLYMERS; ALLOYS; CARBON; COHERENT SCATTERING; ELEMENTAL MINERALS; ELEMENTS; MATERIALS; MATHEMATICS; MECHANICAL PROPERTIES; MINERALS; NONMETALS; NUMERICAL SOLUTION; ORGANIC COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; SCATTERING; SEMIMETALS; 360603* - Materials- Properties

Citation Formats

Pindera, M J, Ifju, P, and Post, D. Iosipescu shear characterization of polymeric and metal matrix composites. United States: N. p., 1990. Web. doi:10.1007/BF02322710.
Pindera, M J, Ifju, P, & Post, D. Iosipescu shear characterization of polymeric and metal matrix composites. United States. https://doi.org/10.1007/BF02322710
Pindera, M J, Ifju, P, and Post, D. 1990. "Iosipescu shear characterization of polymeric and metal matrix composites". United States. https://doi.org/10.1007/BF02322710.
@article{osti_6880406,
title = {Iosipescu shear characterization of polymeric and metal matrix composites},
author = {Pindera, M J and Ifju, P and Post, D},
abstractNote = {The paper outlines the results of an experimental/analytical investigation of deformation and stress fields in the test section of graphite/epoxy and boron/aluminum Iosipescu specimens using high-resolution moire interferometry and finite-element analysis. Very good correlation between experiment and analysis is demonstrated for the graphite/epoxy specimens. This, in turn, justifies the use of correction factors employed in the previous investigations to eliminate differences in the initial shear moduli obtained from 0-deg and 90-deg Iosipescu specimens. The significant discrepancies observed in the case of boron/aluminum specimens are attributed to localized yielding at the notch tips caused by the clamping action, the associated in-plane bending effects and changing boundary conditions due to slippage in the grips. 9 refs.},
doi = {10.1007/BF02322710},
url = {https://www.osti.gov/biblio/6880406}, journal = {Experimental Mechanics; (USA)},
issn = {0014-4851},
number = ,
volume = 30,
place = {United States},
year = {Thu Mar 01 00:00:00 EST 1990},
month = {Thu Mar 01 00:00:00 EST 1990}
}